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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Policies In Ada
Date: 1997/05/08
Message-ID: <dewar.863063986@merv>#1/1
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References: <01bc5b23$8e4375e0$190000c2@Stephen.ers.ie>
Organization: New York University
Newsgroups: comp.lang.ada
Date: 1997-05-08T00:00:00+00:00
List-Id: <comp.lang.ada>


Stephen Cox says

<<Also, I have implemented two tasks with the same priority i.e. they both
have pragma priority(0); in their declaration yet only the first task seems
to execute. Any ideas?>>

yes, I have an idea. My idea is that your Ada compiler is working exactly
as expected. The required dispatching policy FIFO_Within_PRiorities is
required to run-till-blocked. It is permissible, but certainly not required
that the default dispatching policy behave the same way.

if you are expecting time slicing, then (a) your expectation may simply
not be implemented on the compiler you are using, since it is not required
and (b) your application is significantly non-portable!